In controlled environments like cleanrooms, even the smallest particle can compromise product quality, sensitive components, or research accuracy. That’s why cleanroom foam swabs are made with high-performance materials—especially 100 ppi polyurethane foam. But what exactly is 100 ppi foam, and why is it ideal for cleanroom use? Let’s explore.
What Is 100 PPI Polyurethane Foam?
PPI stands for “pores per inch,” a measurement of the foam’s pore density. 100 ppi polyurethane foam is an ultra-fine, open-cell material with about 100 pores per inch, giving it a smooth surface texture and high particle retention capability. This structure allows the foam to trap microscopic contaminants while remaining soft and non-abrasive.
The Role of Foam Pore Size in Cleanroom Applications
In cleanroom swabs, foam pore size directly affects contamination control. Larger pores (lower ppi) may release particles or fibers, while smaller pores (higher ppi) provide:
- Better particulate entrapment
- Low-lint performance
- Reduced fiber shedding
- Gentle cleaning for sensitive surfaces
ال 100 ppi structure offers the perfect balance between absorbency and cleanliness, making it ideal for critical cleaning applications.
Why Polyurethane Foam Is Preferred
Polyurethane foam is a top choice for cleanroom swabs due to its excellent chemical resistance, high absorbency, and durability. Benefits include:
- Compatibility with solvents and disinfectants
- Minimal particle generation
- Non-abrasive cleaning of delicate instruments
- Thermal and mechanical stability
Combined with a high ppi rating, polyurethane foam ensures both efficiency and safety in cleaning operations.
Applications of 100PPI Foam Swabs in Cleanrooms
Cleanroom foam swabs with 100 ppi polyurethane foam are commonly used in:
- Semiconductor manufacturing
- Medical device assembly
- Aerospace and optics
- Pharmaceutical labs
- Electronics cleaning
They are perfect for reaching tight spaces, removing residues, and applying solutions without introducing new contaminants.
High PPI Means High Performance
100 ppi polyurethane foam is not chosen by accident—its pore density, absorbency, and non-shedding properties make it the gold standard for cleanroom swab materials. For manufacturers and labs looking to maintain contamination-free environments, these swabs offer precision cleaning with zero compromise.
Choose MediTech 100PPI Polyurethane Foam Swabs for Reliable Cleanroom Performance

Whether you’re in electronics, healthcare, or aerospace, MediTech foam swabs deliver the precision cleaning performance you can rely on.
Explore our full range of cleanroom foam swabs today and request a free sample to experience the MediTech difference.